[
https://issues.apache.org/jira/browse/LUCENE-10142?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Muir resolved LUCENE-10142.
----------------------------------
Fix Version/s: main (9.0)
Resolution: Fixed
thanks for reviewing [~dweiss]
> use a better RNG for Hnsw vectors
> ---------------------------------
>
> Key: LUCENE-10142
> URL: https://issues.apache.org/jira/browse/LUCENE-10142
> Project: Lucene - Core
> Issue Type: Task
> Reporter: Robert Muir
> Priority: Major
> Fix For: main (9.0)
>
> Attachments: LUCENE-10142.patch
>
>
> When profiling indexing with vectors at
> http://people.apache.org/~mikemccand/lucenebench/, I see a fair amount of
> time spent in java.util.Random.
> {noformat}
> PERCENT CPU SAMPLES STACK
> ...
> 7.30% 305461 java.util.Random#nextInt()
> {noformat}
> We don't need its thread-safety guarantees (CAS loop etc).
> We can use SplittableRandom as a drop-in replacement.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org
For additional commands, e-mail: issues-h...@lucene.apache.org
